The JT65 Communications Protocol document describes two QSO scenarios, an HF-type scenario that consists of 4 messages, and a
VHF-type one, that consists of 6 messages. Currently the FT8 Auto Seq function in WSJT-X supports only the VHF scenario. Since
FT8 has become so popular on HF, the HF-style auto sequence should probably be implemented as well. The message sequence would
be like this:
1: VK0EK VE3NEA FN03
2: VE3NEA VK0EK -20
3: VK0EK VE3NEA R-15
4: VE3NEA VK0EK RR CQ
Note the last message that both completes the current QSO and invites other stations to call. This message should be added to
the already existing list of special messages (CQ, QRZ and DE). I hope there is still a spare grid square around the North Pole
for this new message.
The first three messages in this sequence work the same way as in the 6-message scenario. At stage 4, if the caller (VE3NEA)
receives (4), he knows that the QSO is complete. If he receives (2) again, this means that the DX did not copy his report, so he
repeats his message (3). If he receives "CQ VK0EK MD66" instead, the caller knows that the DX OP has given up, and the QSO
should not be logged. If nothing is received at stage 4, then perhaps (3) should be sent a couple more times before giving up.
Would it be possible to implement this scenario as a user-selected option in
Auto Seq in WSJT-X?
73 Alex VE3NEA
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